Gform_submit_button Append Javascript example throws error [RESOLVED]

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1

I’m adding the example code found here: https://docs.gravityforms.com/gform_submit_button/#h-4-append-a-javascript-action-to-the-button to my functions.php page on my wordpress site but the code changes throw an error on
$dom->loadHTML( ‘<?xml encoding=“utf-8” ?>’ . $button );
due to an unexpected &.

What am I missing here?

2

You may have encountered a minor issue with the HTML entities in your code. No worries, I’ve fixed it for you! Just replace the existing code with this one:

add_filter( 'gform_submit_button', 'add_onclick', 10, 2 );

function add_onclick( $button, $form ) {
    $dom = new DOMDocument();
    $dom->loadHTML( '<?xml encoding="utf-8" ?>' . $button );
    $input = $dom->getElementsByTagName( 'input' )->item(0);
    $onclick = $input->getAttribute( 'onclick' );
    $onclick .= " addAdditionalAction('Additional Action');"; // Here's the JS function we're calling on click.
    $input->setAttribute( 'onclick', $onclick );

    return $dom->saveHtml( $input );
}

Copy and paste the code above into your functions.php file, and you should be good to go!

3

Yeah that fixed my issue, thanks!

5

The issue here was with the documentation page, which has been updated. Thanks @faisalahammad for bringing that to our attention.

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